THE CORPORATE LIBRARY

Related Party Transactions and Outside Related Director Information

Arrhythmia Research Technology, Inc. (HRT)

4/21/2006 Proxy Information

Jason Chambers served as a consultant assisting The Chambers Medical Foundation, a private foundation, in assessing medical grant applications. The Foundation beneficially owns approximately 13% of the Company’s outstanding common stock.

To date, all transactions between the Company and its officers, directors or their affiliates have been approved or ratified by a majority of the directors who did not have an interest in, and who were not employed by the Company at the time of, such transaction. The Company’s Audit Committee reviews and oversees transactions between the Company and its executive officers and directors.

The Company believes that all transactions entered into with affiliates of the Company were on terms no less favorable than could have been obtained from unaffiliated third parties.

Dr. Tabin, a Director and stockholder of the Company, is a partner of a law firm that represents the Company with respect to patent and other intellectual property law matters. Fees for services and patent costs paid to this firm were approximately $7,800 and $13,000 for fiscal years ended 2005 and 2004, respectively.

4/29/2005 Proxy Information

From March 1995 until June 1997, Mr. Marinos was President and Chief Executive Officer of Arrhythmia Research Technology, Inc.

To date, all transactions between the Company and its officers, directors or their affiliates have been approved or ratified by a majority of the directors who did not have an interest in, and who were not employed by the Company at the time of such transaction. The Company’s Audit Committee reviews and oversees transactions between the Company and its executive officers and directors.

The Company believes that all transactions entered into with affiliates of the Company were on terms no less favorable than could have been obtained from unaffiliated third parties.

Dr. Tabin, a Director and stockholder of the Company, is a partner of a law firm that represents the Company with respect to patent and other intellectual property law matters. Fees for services and patent costs paid to this firm were approximately $13,000 and $17,000 for fiscal years ended 2004 and 2003, respectively.

Dr. Russell C. Chambers, a director and principal stockholder of the Company, performs consulting services for the Company and in exchange the Company pays a portion of his health insurance premiums. The portion of health insurance premiums paid by the Company was approximately $4,300 and $7,400 in 2004 and 2003, respectively.

4/23/2004 Proxy Information

Dr. Russell C. Chambers, a director and principal shareholder of the Company, performs consulting services for the Company and in exchange the Company pays a portion of his health insurance premiums. The portion of health insurance premiums paid by the Company was approximately $7,400 in 2003 and 2002.

Dr. Tabin, a Director and shareholder of the Company, is a partner of a law firm that represents the Company with respect to patent and other intellectual property law matters. Fees for services and patent costs paid to this firm were approximately $17,000 and $19,000 for fiscal years ended 2003 and 2002, respectively.

From March 1995 until June 1997, Mr. Marinos was President and Chief Executive Officer of Arrhythmia*